Im trying to submit a HTML with JS form

does the return false; need "()"
should it be return true ? based on my js functions

any ideas?

<form name="Forders" action="address.asp" method="post" onSubmit=" nBlank(); cDefault(); numVal(); valEmail(); radioVal(); delDrops();checkText(this.card);return false; " >

Most of my js functions look llike this;

function cDefault()
if(document.Form.name.value == "000")
alert("alert text");
return false;